/Engine/Plugins/Online/OnlineServicesEOSGS/Source/Public/Online/LobbiesEOSGS.h
Promote another lobby member to leader. The local user must be the current lobby leader to promote another member.
virtual [TOnlineAsyncOpHandle](API\Plugins\OnlineServicesInterface\Online\TOnlineAsyncOpHandle)< [FPromoteLobbyMember](API\Plugins\OnlineServicesInterface\Online\FPromoteLobbyMember) > PromoteLobbyMember ( [FPromoteLobbyMember::Params](API\Plugins\OnlineServicesInterface\Online\FPromoteLobbyMember\Params) && Params )